elmolino89

9 ms·

31.
by elmolino89 3y ago
Apart from respiratory infections: cardiovascular events. There was a famous paper about guys dropping dead while/after cleaning snow from the sidewalks/driveways (Illinois?). Not necessary from the physical shovelling but from ju
32.
by elmolino89 3y ago
Thank you. Point taken. I was mistaken assuming that this summary goes not as a comment but as summary of the submission.
33.
CCS Redux: Carbon Capture Is Expensive Because Physics(cleantechnica.com)
2 points by elmolino89 3y ago|4 comments
34.
by elmolino89 3y ago
Carbon capture and sequestration is expensive because it has three components, each with its own expensive challenges: capture, distribution, and sequestration. The mass of CO2 produced is 2-3 times the mass of coal or methane* burned and i
35.
by elmolino89 3y ago
Using green or nuclear electricity to create fuels to burn them seems to be a rather wasteful route. One can use in most cases electricity directly, save planes and oceanic ships. The second peeve is with CO2 capture: while plants may not b
36.
by elmolino89 3y ago
I seriously doubt that except fresh produce in some hellishly hot desert country large scale agriculture using desalinated water makes sense. Much less so if you don't grow some cash crops but have to process it then transport the fina
37.
by elmolino89 3y ago
Making diy biochar imho makes sense if you have dry, wood-ish material (Arundo, bamboo, branches). Otherwise you are likely to produce a lot of smoke for little biochar. As for the garden organic waste one can tie itself in knots trying to
38.
by elmolino89 3y ago
The iroh name resembles a bit iRODS, another system for distributed file sharing and fine grained permissions. Quick googling did not give me a proper grasp of the use cases for iroh/IPFS vs iRODs. Would you be willing to list the bene
39.
by elmolino89 3y ago
Well, both GitHub and the GitLab have wiki functionality. Not on par afaik with more familiar MediaWiki but nevertheless good enough for not just software project documentation. No experience with transforming these wikis into stand alone
40.
by elmolino89 3y ago
Just curious: any features (from your point of view obviously) making it a better choice compared to i.e free version of GitLab?
41.
by elmolino89 3y ago
Since with the heat pumps we need to remove extra heat in the summer heating the sewage may help to disolve some of the fat blobs. But it is a risque idea, since we are likely to open Pandora's box of higher methane production, pathoge
42.
by elmolino89 3y ago
Clean water flowing in the pipes to a house will often be warmer than outside air during winter and have a higher heat capacity than air used in heat pumps. No idea if using another heat pump and lowering the temperature from say 10C (ignor
43.
by elmolino89 3y ago
I have spend few years in San Diego doing hikes inland. There are decently sized mountains in the desert between say Borrego Springs and the coast. Not an optimal area to build a pipeline cheaply. Pipe going along Colorado river should have
44.
by elmolino89 3y ago
I am by no means a desalination expert, but pumping vast amount of a salty water 100+ kilometers (Pacific Coast) or from the Sea of Cortez (closer to 200kms) seems strange as compared to building the desalination plant on the shore and tra
45.
by elmolino89 3y ago
I may be a rare bird starting with R dataframes (still newbie+ level), then python polars (intermediate- ?). Frankly whenever I have to use pandas or df's in R I am not convinced that these are more intuitive/easier to master. I.e
46.
by elmolino89 3y ago
You can store your data as parquet file(s) and query these on separate nodes handling multiple queries. Or for the giant data create a split parquet datasets and speed up the queries.
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by elmolino89 3y ago
You may shave some time replacing pandas with polars.
48.
by elmolino89 3y ago
Last time I checked carbon was black. Mixing it with cement to get a darker concrete may be a brain dead idea: you get CO2 sequestration and warmer walls/pavements etc if exposed to sunlight. One can avoid that by using it only for no
49.
by elmolino89 3y ago
Actually one can take out renewable energy produced at the desalination facility or anywhere close to it out of equation. The drinkable water can be viewed by itself as "salty water + stored energy". If you produce it at any time
50.
by elmolino89 3y ago
Assuming you use the sea water: in a hot climate if the reservoir is exposed evaporation will make the water more salty. Building covered elevated cisterns just for the salty water energy storage may be too costly compared to other options,
51.
by elmolino89 3y ago
Good point. Indeed such impermeable to even water vapor paints peal off/cause the damage to bricks/stones under.
52.
by elmolino89 3y ago
I use Nextflow but I assume Snakemake has the similar functionalities. In short, writing Python code handling often +10 separate steps with external binaries robust enough to restart the pipeline with say 15 out of 100 files failed at step
53.
by elmolino89 3y ago
It is not the problem with lime vs another white paint outside of the buildings. Modern paints based often containing TiO2 are more durable. But I am with you that using lime especially on roofs/sun exposed walls (assuming lime does no
54.
by elmolino89 3y ago
The input substrate to produce CaO is CaCO3. This requires a lot of energy, often obtained by burning coal and the reaction releases CO2. Absorbing CaO/Ca(OH)2 makes sense only in systems like submarines/bunkers with no external
55.
by elmolino89 3y ago
xsv is great for a quick sanity checks (i.e. number of columns, unique values counts in a given column) but for a more serious tasks/giant files I switch to either polars or duckdb converting CSV/TSV files to parquet or parquet da
56.
by elmolino89 3y ago
Not exactly. Try to meditate out diarrhea.
57.
by elmolino89 3y ago
Seems that eating Azolla or maybe even animals feed Azolla may not be the safest thing to do: https://en.wikipedia.org/wiki/Beta-Methylamino-L-alanine The cyanobacterian symbiont of Azolla, Anabena can produce neurotox
58.
by elmolino89 3y ago
Refutation contains what I also noted: "For the ENaC hypothesis to be true, UNC or WIV researchers would have had to possess the direct SARS-CoV-2 progenitor isolated from another animal—not a bat." COVID-19 is not "some prev
59.
by elmolino89 3y ago
"""However, with analogy to influenza, it was shown many years ago that the simple insertion of a polybasic site into an H3 virus does not result in a high pathogenicity phenotype7 and is likely to only function in the contex
60.
by elmolino89 3y ago
Despite rather intense searching the closest strain to C19 in the wild split ca 50 years ago. Please tell how do you introduce this famous mutation not into any of the commonly found covid viruses but create C19 differing from these. Who in

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